The Oka Crisis 1990 By Troy.Harrower12 Period: Jul 11, 1990 to Sep 26, 1990 The Oka Crisis 1990 Period: Jul 11, 1990 to Sep 26, 1990 The Oka Crisis 1990 Period: Jul 11, 1990 to Sep 26, 1990 The Oka Crisis 1990 Nov 3, 2016 The Oka Crisis 1990 Nov 3, 2016 The Oka Crisis 1990